MSM64158A Datasheet, PDF (1/25 Pages) OKI electronic componets – 4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit

E2E0031-38-95
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Previous version: Mar. 1996
MSM64158A/64158AL
4-Bit Microcontroller with Built-in LCD Driver and Melody Circuit
GENERAL DESCRIPTION
The MSM64158A (1.5 V)/64158AL (3.0 V) is a high-performance 4-bit microcontroller that
incroporates Oki-original CPU core nX-4/20.
The MSM64158A/64158AL has an LCD driver for up to 144 segments, an event counter, and a
melody circuit. It is best suited for applications such as clocks and LCD games.
FEATURES
• Operating range
Operating voltage
: 1.5 V/3.0 V
Operating temperature
: –40 to +70°C
Operating frequency
: 32.768 kHz crystal oscillation
Approx. 32 kHz RC oscillation
Supply current (Typ.)
: 0.9 µA (3.0 V at HALT mode)
• Minimum instruction execution time : 91 µs
• General memory space
: 2528 bytes
• Local memory space
: 128 nibbles
• LCD drivers
: 40
Common driver ¥ 4
Segment driver ¥ 36
1/4 duty, 1/3 bias; 144 segments (36 ¥ 4)
1/3 duty, 1/3 bias; 108 segments (36 ¥ 3)
• I/O port
Input-output port
: 1 port ¥ 4 bits (open drain output/CMOS output
selectable; pull-down resistor input/high-
impedance input selectable)
Input port
: 1 port ¥ 2 bits (pull-down resistor input /high-
impedance input selectable)
1 port ¥ 4 bits (pull-down resistor input/high-
impedance input selectable)
• Event counter
:1
• Melody output
:1
• Interrupts
: 7 sources (external 3, time base 3, melody 1)
• Package:
64-pin plastic QFP (QFP64-P-1414-0.80-BK): (Product name : MSM64158A-¥¥¥GS-BK,
MSM64158AL-¥¥¥GS-BK)
Chip
: MSM64158A-¥¥¥, MSM64158AL-¥¥¥
¥¥¥ indicates a code number.
• OTP version (for program evaluation) : MSM64P155/64P155L
(The packages, power polarity, and operating voltage of the MSM64P155/64P155L are
different from the MSM64158A/64158AL. For details, refer to the "MSM64P155 User's
Manual".)
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